161900752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:360

約数の個数: 80

約数和(自身を含む): 351939280

約数和(自身を除く): 190038528

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 109, 148, 193, 208, 218, 296, 386, 436, 481, 592, 772, 872, 962, 1417, 1544, 1744, 1924, 2509, 2834, 3088, 3848, 4033, 5018, 5668, 7141, 7696, 8066, 10036, 11336, 14282, 16132, 20072, 21037, 22672, 28564, 32264, 40144, 42074, 52429, 57128, 64528, 84148, 92833, 104858, 114256, 168296, 185666, 209716, 273481, 336592, 371332, 419432, 546962, 742664, 778369, 838864, 1093924, 1485328, 1556738, 2187848, 3113476, 4375696, 6226952, 10118797, 12453904, 20237594, 40475188, 80950376, 161900752]

約数ペア:

[(1, 161900752), (2, 80950376), (4, 40475188), (8, 20237594), (13, 12453904), (16, 10118797), (26, 6226952), (37, 4375696), (52, 3113476), (74, 2187848), (104, 1556738), (109, 1485328), (148, 1093924), (193, 838864), (208, 778369), (218, 742664), (296, 546962), (386, 419432), (436, 371332), (481, 336592), (592, 273481), (772, 209716), (872, 185666), (962, 168296), (1417, 114256), (1544, 104858), (1744, 92833), (1924, 84148), (2509, 64528), (2834, 57128), (3088, 52429), (3848, 42074), (4033, 40144), (5018, 32264), (5668, 28564), (7141, 22672), (7696, 21037), (8066, 20072), (10036, 16132), (11336, 14282)]